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A Cluster-Based Quad-Tree Partitioning for Scheduling the Mobile Element in Wireless Sensor Networks

  • K. Indra Gandhi
  • P. Narayanasamy
Article

Abstract

In Wireless Sensor Networks, collection of data from the sensor nodes without data loss is a major challenge of great concern. Nodes are deployed statically and will relay the data to the base station which lead to the problem of energy-drain to the nodes near the base station since these nodes have to constantly relay data to the base station. Data collection from the sensor nodes by the mobile node or element without data loss is termed as the scheduling of the Mobile Element (ME). The proposed problem can be classified into three phases. In the initial phase, the nodes are clustered according to their geographical region in a hierarchical fashion. In the second phase, the nodes within each cluster which are in the active state are only visited by the mobile element. Quad-tree based partitioning is performed in order to schedule the visit by ME to the nodes in the active state within each cluster. In the third phase, the ME visits only the boundary-near nodes and the speed of the ME is varied based on the simplex method such that the data loss is minimized.

Keywords

Cluster Wireless sensor networks Scheduling Mobile element Partitioning 

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Department of Computer Science and EngineeringAnna UniversityChennaiIndia

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